Send me email updates about messages I've received
on the site and the latest news from The CafeMom Team.By signing up, you certify that
you are female and accept the Terms of Service and have read the
Privacy Policy.

How about when someone asks how much you paid for your house? Is that rude?

I don't see it as a big deal. Especially if the person likes my house and is just wondering what it would take to get one like it! You can simply answer as oh, we got a good deal on it. And leave it at that if you choose to do so.

I don't think it's meant as a rude question, but I will admit that the question bothers me a little. Mostly because people choose homes based on their income/budget so it's almost like asking how much money you make.

It's considered to be a rude question, yes - not because the information is "private", but rather because money is largely a taboo subject.
If you do not want to tell, then simply say "I don't discuss financial matters". If you'd rather, you could simply give a range - "in the mid $200,000's".

It's considered rude, but it never bothered me. You could say something like "all the homes in this development are in the 200K-300K range". All real esate transactions are public record if they really want to find out.